Honestly, what's the big deal about Andrea Horwath calling it a day if this effort doesn't pan out? She's actually given it a shockingly good run, given all the stacked-deck obstacles in place--the lingering third-party stigma, lingering negative memories of the Rae years, a major media infrastructure hard-wired t/w a strict Lib/Con "viable party of government" binary w/the NDP nothing more than that vote-wasting nuisance around the edges. And if 2018 proves to have been ceiling, it's less due to her own demerits than to, again, said media infrastructure not being able to get their heads around the NDP taking up that official opposition space which ought "rightfully" to belong to the Libs, plus Premier Ford's own gaslighting "I won, you lost, so there, nyaaah" manner of governance not giving her oxygen. And honestly, if to you, NDP "viability" is all about Premiership and Government, then at virtually any time prior to the 2018 surprise you would have been a bit on the pie-in-the-sky side in lending them your support. Even if she loses ground, she'll still likely leave the party in a far better place than it was in when she assumed leadership.
Yet I don't know--there's this perspective that seems to constantly want to accentuate the negative when it comes to Horwath's supposedly "failed" leadership. Even re the 2018 Orange wave, it's like "yeah, but she still lost". And of course, it'd seem like this wall of overwrought "Andrea the loser" judgment is virtually exclusively male...